Computer simulation of thermal convection in Rayleigh-Bénard cell ...
Computer simulation of thermal convection in Rayleigh-Bénard cell ...
Computer simulation of thermal convection in Rayleigh-Bénard cell ...
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Hubert Jopek<br />
<strong>Computer</strong> <strong>simulation</strong> <strong>of</strong> <strong>thermal</strong> <strong>convection</strong> <strong>in</strong> <strong>Rayleigh</strong>-<strong>Bénard</strong> <strong>cell</strong><br />
Appendix B - fluid properties<br />
The tables which are presented below conta<strong>in</strong> some standard values that are<br />
used <strong>in</strong> describ<strong>in</strong>g fluids. These properties are necessary to describe fluid flow and<br />
they are used to determ<strong>in</strong>e the values <strong>of</strong> some dimensionless numbers. There were<br />
two <strong>of</strong> such numbers determ<strong>in</strong>ed (assum<strong>in</strong>g that the height <strong>of</strong> the fluid layer is 1m<br />
and the temperature difference between top and bottom is 16 o C): <strong>Rayleigh</strong> number,<br />
Prandtl number.<br />
Properties <strong>of</strong> air at 20 o C :<br />
Property Value Units<br />
kg<br />
Density 1.2047<br />
3<br />
m<br />
Dynamic viscosity<br />
K<strong>in</strong>ematic viscosity<br />
Thermal diffusion coefficient<br />
1.8205E-5<br />
1.5111E-5<br />
2.1117E-5<br />
kg<br />
m ⋅s<br />
m 2<br />
s<br />
m 2<br />
s<br />
Thermal expansion coefficient 3.4112E-3<br />
1<br />
K<br />
Prandtl number 0.71559<br />
<strong>Rayleigh</strong> number<br />
1.0487E+6<br />
44
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